2009 Kia Optima V6-2.7LFACTORY OEM SERVICE PROCEDURE

Throttle Position Sensor: Testing and Inspection





Inspection

Throttle Position Sensor (TPS)
1. Connect a scantool on the Data Link Connector (DLC).
2. Start the engine and measure the output voltage of TPS 1 and 2 at C.T. and W.O.T.

Factory service manual diagram




3. Turn the ignition switch OFF and disconnect the scantool from the DLC.
4. Disconnect the ETC module connector and measure the resistance between the ETC module terminals 4 and 1 (TPS 1).

Specification : Refer to "Specification"


5. Measure resistance between the ETC module terminals 7 and 6 (TPS 2).

Specification : Refer to "Specification"


ETC Motor
1. Turn the ignition switch OFF.
2. Disconnect the ETC module connector.
3. Measure resistance between the ETC module terminals 5 and 8.
4. Check that the resistance is within the specification.

Specification : Refer to "Specification"


Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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